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489120732 = 223273186119
BaseRepresentation
bin11101001001110…
…110001111011100
31021002100220111200
4131021312033130
52000203330412
6120311315500
715056312652
oct3511661734
91232326450
10489120732
11231106711
1211797bb90
137a446269
1448d62dd2
152ce199dc
hex1d2763dc

489120732 has 36 divisors (see below), whose sum is σ = 1253332080. Its totient is φ = 160805952.

The previous prime is 489120727. The next prime is 489120733. The reversal of 489120732 is 237021984.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489120733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90432 + ... + 95687.

It is an arithmetic number, because the mean of its divisors is an integer number (34814780).

Almost surely, 2489120732 is an apocalyptic number.

It is an amenable number.

489120732 is an abundant number, since it is smaller than the sum of its proper divisors (764211348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489120732 is a wasteful number, since it uses less digits than its factorization.

489120732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186202 (or 186197 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 489120732 is about 22116.0740639020. The cubic root of 489120732 is about 787.9016750551.

The spelling of 489120732 in words is "four hundred eighty-nine million, one hundred twenty thousand, seven hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 73 146 219 292 438 657 876 1314 2628 186119 372238 558357 744476 1116714 1675071 2233428 3350142 6700284 13586687 27173374 40760061 54346748 81520122 122280183 163040244 244560366 489120732